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Finding the Fourth Proportional to 247,162.68, 341,071.28 and 139,726.32

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Solution

The fourth proportional to 247,162.68, 341,071.28 and 139,726.32 is: 192,814.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,162.68 : 341,071.28 = 139,726.32 : x
  2. Step 2: Convert to fraction form
    247,162.68/341,071.28 = 139,726.32/x
  3. Step 3: Cross multiply
    247,162.68x = 341,071.28 × 139,726.32
  4. Step 4: Simplify right side
    247,162.68x = 47,656,634,812.09
  5. Step 5: Solve for x
    x = 47,656,634,812.09/247,162.68
  6. Step 6: Final answer
    x = 192,814.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.